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Lack of concentration happens almost every day in our lives, ranging from staring into blank space to forgetting something. Lack of concentration mainly correlates to the mental state of the students. It affects the educational performance of the students in the class, ranging from harmless ones like staring in blank space to serious ones like forgetting a requirement needed to be submitted on a certain date. The researchers conducted this study to know the factors that affect the concentration of Grade 12 General Academic Strand (GAS) students. The researchers used descriptive design in such a way that the survey questionnaire was administered to thirty (30) Grade 12 GAS students chosen through random sampling. The survey questionnaire was constructed to determine the most common reason why some students lose their concentration in class, the consequences that it brought, and the proposed recommendations to prevent this. Moreover, the theory of Cerdan (2014) stated that the lack of concentration could most possibly happen due to more spiritual or mental problems occurring to a person. The data collected were analyzed qualitatively. Many students who responded to this study agreed that factors affect their lack of concentration. The respondents stated that the most common factor affecting their concentration was thinking about their problems about their family and personal needs, while in the assessment of the consequences after losing concentration, the respondents emphasized that it resulted in receiving low grades from the different subject areas. The results asked for recommendations to address the lack of student concentration in class. These recommendations could be forwarded to address the said problem: Students should control their thoughts about other problems that are not concerned with their school activities; Teachers and parents should collaborate to help students prevent loss of concentration; Students should try to sort out other problems that distrac

Lack of concentration happens almost every day in our lives, ranging from staring into blank space to forgetting something. Lack of concentration mainly correlates to the mental state of the students. It affects the educational performance of the students in the class, ranging from harmless ones like staring in blank space to serious ones like forgetting a requirement needed to be submitted on a certain date. The researchers conducted this study to know the factors that affect the concentration of Grade 12 General Academic Strand (GAS) students. The researchers used descriptive design in such a way that the survey questionnaire was administered to thirty (30) Grade 12 GAS students chosen through random sampling. The survey questionnaire was constructed to determine the most common reason why some students lose their concentration in class, the consequences that it brought, and the proposed recommendations to prevent this. Moreover, the theory of Cerdan (2014) stated that the lack of concentration could most possibly happen due to more spiritual or mental problems occurring to a person. The data collected were analyzed qualitatively. Many students who responded to this study agreed that factors affect their lack of concentration. The respondents stated that the most common factor affecting their concentration was thinking about their problems about their family and personal needs, while in the assessment of the consequences after losing concentration, the respondents emphasized that it resulted in receiving low grades from the different subject areas. The results asked for recommendations to address the lack of student concentration in class. These recommendations could be forwarded to address the said problem: Students should control their thoughts about other problems that are not concerned with their school activities; Teachers and parents should collaborate to help students prevent loss of concentration; Students should try to sort out other problems that distrac

We consider the problem of designing self-healing rings in order to protect the transmission of telecommunication demands in a zonal network. This problem stems from a real application with operational constraints such as dual homing and hop limit per ring. A modeling approach taking into account ring interactions is proposed as well as a tabu search heuristic for solving it. Computational results for a comprehensive set of real and randomly generated instances are presented., info:eu-repo/semantics/published

We consider the problem of designing self-healing rings in order to protect the transmission of telecommunication demands in a zonal network. This problem stems from a real application with operational constraints such as dual homing and hop limit per ring. A modeling approach taking into account ring interactions is proposed as well as a tabu search heuristic for solving it. Computational results for a comprehensive set of real and randomly generated instances are presented., info:eu-repo/semantics/published

info:eu-repo/semantics/published

This paper examines a network design problem that arises in the telecommunications industry. In this problem, communication between a gateway vertex and a number of demand vertices is achieved through a network of fiber optic cables. Since each cable has an associated capacity (bandwidth), enough capacity must be installed on the links of the network to satisfy the demand, using possibly different types of cables. Starting with a network with no capacity or some capacity already installed, a tabu search heuristic is designed to find a solution that minimizes the cost of installing any additional capacity on the network. This tabu search applies a k-shortest path algorithm to find alternative paths from the gateway to the demand vertices. Numerical results are presented on different types of networks with up to 200vertices and 100 demand vertices.

info:eu-repo/semantics/published

info:eu-repo/semantics/published

info:eu-repo/semantics/published